I2C 24C series EEPROM chips are stil used in many areas. There are many ways to program EEPROMs and many types of programmers you find on the Internet. But this one is little bit different as it does not need special software to program or read EEPROM devices.
Due to AT90S2313 or Attiny2313 microcontroller on board it is possible to connect programmer via RS232 interface and program ERPROM by sending commands and data from simple terminal software. Microcontroller handles I2C connection protocol with 24Cxx chip. Main benefits of this programmer is that it is not tied to single program or operation system. This way EEPROM chips can be programmed on any machine where COM port and terminal software is present.